4 men pleaded guilty to lesser charges in German tourist's murder

New details are emerging about the fatal shooting of a German elementary school teacher Mechthild Schrer, who was on vacation in San Francisco.

Four men originally charged with murder pleaded guilty to lesser charges Friday.

They'll spend between five and nine years in prison.

In 2010, Schrer was killed near Union Square in a shootout between rival gangs.

District Attorney George Gascon agreed to pleas on gun and assault charges, saying unreliable witnesses and a chaotic crime scene made it hard to prosecute.

Two other suspects could still face charges.

Authorities said Friday that the men are Phillip Stewart, 22; Delvon Scott, 22; Raheem Jackson, 20; and Willie Eason, 22.

Schrer was in town with her husband to celebrate her 50th birthday and wedding anniversary when they were caught in gunfire at Mason and Geary streets on Aug. 8, 2010. Schrer was killed and two others injured.